Mining, Quarrying, Oil & Gas · Lower Lake, CA
Dna Ridge Rock
According to OSHA enforcement records (2010–2026), Dna Ridge Rock has a relatively clean safety record: 2 violations across 3 inspections. See the full breakdown below.
- $0
- OSHA penalties
- 2
- Violations cited
- 3
- OSHA inspections
Dna Ridge Rock in Lower Lake, CA has been the subject of 3 OSHA workplace inspections and 2 citations since 2010, according to enforcement records from the U.S. Department of Labor. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.
The record in one line
OSHA has inspected Dna Ridge Rock 3 times over 2 years, roughly annually. These inspections resulted in 2 violations, averaging 0.7 per inspection, on the lighter side. Against the Mining, Quarrying, Oil & Gas industry average of 2 inspections per employer, this runs moderately above peers (1.3x the sector average) on inspection frequency. For comparison, Patterson-Uti Drilling Company, LLC in Snow Shoe, PA is another mining, quarrying, oil & gas employer with 2 OSHA inspections on record and $0 in current penalties.
- 0.7
- violations per inspection
- 0.0%
- of violations were serious
Compliance score
- B OSHA safety compliance: 2 violations across 3 OSHA inspections (0.7 per inspection), vs. national p10 0.0 (best) / p90 5.5 (worst) among 145,626 inspected employers.
Channels are separate federal datasets: a dimension marked not applicable simply has no record in that dataset for this employer, not a good or bad score.
Does more inspection scrutiny mean more findings?
Each dot is one of 21 Mining, Quarrying, Oil & Gas employers with an OSHA inspection on record, placed by inspections and violations cited. The highlighted dot is Dna Ridge Rock.
How Dna Ridge Rock Compares
Dna Ridge Rock's 0.67 violations per inspection compares to the Mining, Quarrying, Oil & Gas sector average of 3.1 violations per employer.
No OSHA penalty has been assessed against Dna Ridge Rock to date. The Mining, Quarrying, Oil & Gas sector average runs $4,539 per employer.
Enforcement detail
OSHA Inspection History
Total Inspections
3
First Inspection
2011-07-13
Last Inspection
2013-08-08
Inspection Span
2 yrs
Violations / Inspection
0.7
Avg Penalty / Inspection
$0
Industry Avg / Inspection
$2,042
What this shows 3 inspections over 2 years, averaging 0.7 violations per visit. That's $0 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,042.
Enforcement detail
Violation Breakdown
0
Serious
0.0% of total
0
Willful
0.0% of total
0
Repeat
0.0% of total
2
Other-Than-Serious
100.0% of total
What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.
Industry Safety Context: Mining, Quarrying, Oil & Gas
How Dna Ridge Rock compares to the Mining, Quarrying, Oil & Gas sector, which has 2,294 employers tracked by PlainWorker.
| Metric | Dna Ridge Rock | Industry Avg |
|---|---|---|
| Inspections | 3 | 2.2 |
| Violations | 2 | 3.1 |
| Total Penalty | $0 | $4,539 |
| Avg Penalty per Inspection | $0 | $2,042 |
Nationwide Mining, Quarrying, Oil & Gas peers with similar penalties or inspection counts
Two OSHA-record peer sets for Dna Ridge Rock, both outside CA so the neighborhoods are not geographic containment.
Similar OSHA inspection count
Same-sector employers with a comparable inspection history outside this state (3 inspections here).
Nearby & Similar Employers in Mining, Quarrying, Oil & Gas
Showing 5 of 2293 other employers tracked in this sector.
Compare Dna Ridge Rock vs Robertson's Ready Mix, LTD side-by-side →
What to do with this record
Use Dna Ridge Rock's enforcement history as one data point, not the whole picture.
- A single employer's record can look unusual in isolation. Compare Dna Ridge Rock against Robertson's Ready Mix, LTD, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
- See whether Dna Ridge Rock's inspection and penalty record is typical for Mining, Quarrying, Oil & Gas or an outlier against the sector's own average. View the Mining, Quarrying, Oil & Gas sector
- Before you accept a job or raise a safety concern, search any employer for its own OSHA inspection history the same way you found this one. Search employers
Figures reflect closed OSHA and WHD federal enforcement actions on record (2010–2026); not every workplace issue results in an inspection or investigation.
Frequently Asked Questions
Is Dna Ridge Rock safe to work at? ▼
How many OSHA violations does Dna Ridge Rock have? ▼
How many OSHA inspections has Dna Ridge Rock had? ▼
What is the total penalty amount for Dna Ridge Rock? ▼
What industry does Dna Ridge Rock operate in? ▼
How does Dna Ridge Rock's safety record compare to industry average? ▼
Data Sources & Methodology ▼
Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).
Source: OSHA Enforcement Data
Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.
Source: Wage and Hour Division (WHD)
Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.
Employer Matching
Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.